Remove bogus 'unplug' calls from libvirt VIF test

Since the 'get_config' method was introduced to the libvirt
VIF class, separate from the 'plug' method, there is no need
to call the 'unplug' method in the test suite

Blueprint: libvirt-vif-driver
Change-Id: I1c3d055e258117c2657cd72386472dff2e0e08b8
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Add host name to log message for _local_delete

Better log message will hopefully make it easier for operators
to diagnose.

Change-Id: I447f7530a05f9af6e152f1e5d484027684795b27
Cleanup pyflakes in nova-manage

Also fixes bug 1097830

Change-Id: Id0d73950709b92f39b7ab7a915373ace0b1616ae
Create a directory for servicegroup drivers.

Right now there is only one servicegroup driver, the db backed driver.
Create a directory for drivers to reside in to keep things a bit more
tidy as we add additional drivers.

Part of blueprint rpc-based-servicegroup-driver.

Change-Id: Ib563e1a8d184cef838e5730b2fc6904940d04c21
Merge "Create a directory for servicegroup drivers."
Fix libvirt resume function call to get_domain_xml

Fixes bug 1098411

block_device_info was always being passed as None, which was a mistake
I introduced with a prior patch.

Change-Id: If4fe99e4716c193126b0a525378b51ea5801bdfe
Merge "Add host name to log message for _local_delete"
Merge "Fix libvirt resume function call to get_domain_xml"
Merge "Cleanup pyflakes in nova-manage"
Merge "Remove bogus 'unplug' calls from libvirt VIF test"